Single-link strain.



PATBNTED AUG. 4, 1903.

In STBINBERG-BR, SINGLE LINK STRAIN. APPLICATION rum) um. 29, 1903.

no MODEL.

WITNESSES.- %mm 1 M A TTORNE') no, retteia.

UNITED STATES latented August a, 1903.

LOUIS STEINBERGER, OF NEW YORK, N. Y.

SINGLE-LINK STRAIN.

SPECIFICATION forming part of Letters Patent No. 735,612, dated August4, 1903. Application filed January 29, 1903. $erial No. 141,022. (Nomodel.)

To all whom, it may concern.-

Be it known that I, LOUIS STEINBERGER, a citizen of the United States,and a resident of the city of New York,borough of Brooklyn,

in the county of Kings and State of New York, have invented a new andImproved Single- Link Strain, of which the following is a full, clear,and exact description.

My invention relates to insulated electrical strains used for outdoorwiring, and more particularly to the production ofa strain embodying ahigh degree of simplicity, neatness, cheapness, and general efficiency.

My invention further relates to the production of a strain in whichthere is virtually but a single metallic link, as the term is usuallyemployed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of my improved strain complete. Fig. 2 is asection upon the line 2 2 of Fig. 1 looking in the direction of thearrow, and Fig. 3 is a plan view of the metallic link alone.

The metallic link 1 is of longitudinal form and is provided at one ofits ends with a substantially spherical member 2, integral therewith,and with a cylindrical opening 3, passing entirely through the sphericalmember, whereby the same is virtually formed into an eye capable of useas abearing-eye. The

other end of the link is provided with a suspension-eye a for engagingthe wire, cable, or other conductor, from which the strain is suspended.

The internal surface 5 of the bearing-eye 2 is cylindrical, as indicatedin Figs. 2 and 3. An insulating medium is disposed upon the link in suchmanner as to partially envelop the same, the spherical bearing-eye 2being completely covered both internally and externally, as indicated inFig. 2. The insulation forms a cylindricallining7 within and concentricto the bearing-eye 2.

A tubular bushing S, of metal, is disposed within the aperture 3 andconcentric to the eye 2, being spaced therefrom by the internal portion7 of the insulation 6. The purpose of this bushing 8 is not to serve asa link proper in the usual acceptation of the term,

but is rather a means forprotecting the insulation 7 within thebearing-eye 2.

I do not limit myself to the use of the cyintegral with the link 1.

I do not limit myself to the particular form of link herein shown anddescribed, as other forms of single links may be employed withoutdeparting from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- 1. A single-link strain, comprising a singlemetallic link provided with asuspension memher and with abearing-surface, an insulating medium engaging said bearing-surface andpartially enveloping said metallic link, and means for preventing injuryto said insulating medium adjacent to said bearing-surface.

2. A single-link strain, comprising a single metallic link provided witha suspension memher and with a bearing-surface, an insulating mediumengaging said bearing-surface and partially enveloping said metalliclink, and a metallic bushing for preventing inj cry to said insulatingmedium engaging said bearingsurface.

3. A single-link strain, comprising a single metallic link provided witha bearing-eye, and with a suspension member, an insulating mediumengaging said bearing-eye and partially enveloping said metallic link,and a metallic bushing disposed Within said eye and concentric thereto,said bushing engaging said insulating medium and serving as a suspensionmember.

4. A single-link strain, comprising a single metallic link provided witha head integral therewith, and with an eye through said head, aninsulating mediumengaging said eye, and a metallic bushing concentricwith said eye and engaging said insulating medium.

5. A single-link strain, comprising a single metallic link provided withan enlarged head and with a cylindrical eye passing directly throughsaid head, an insulating medium engaging said eye internally, and ametallic bushing having the form of a cylindrical sleeve disposed withinsaid eye and concentric thereto, said bushing engaging said insulationand providing a cylindrical opening entirely through said head and saidinsulating medium.

6. A single-link strain, comprising a single metallic link provided witha suspension-eye and With abearing-eye, an insulating medium engagingsaid bearing-eye and provided With a cylindrical opening, and acylindrical metallic member engaging said opening and free to serve as asuspension member.

7. A single-link strain, comprising a single metallic link provided witha suspension-eye and with abearing-eye, an insulating medium partiallyenveloping said metallic link and partially filling said bearing-eye,and a metallic bushing disposed Within said bearingeye and spacedtherefrom by said insulating medium.

8. A singlelink strain, comprising a single metallic link provided witha suspension-eye and With abearing-eye, an insulating medium partiallyfilling said bearing-eye and engaging the same concentrically, and meansfor preventing injury to said insulating medium Within said bearing-eye.

9. A single-link strain, comprising a single metallic link having a headprovided with a cylindrical eye, an insulating medium engaging saidcylindrical eye internally and fitting the same concentrically, andmeans for protecting the internal surface of said insulating mediumWithin said eye.

10. Asingle-linkstrain,comprisingasingle metallic link having a headprovided With a suspension-eye and with a bearing-eye, an insulatingmedium disposed partially Within said bearing-eye and engaging the sameinternally, said insulating medium enveloping said head but not saidsuspension-eye, and means for preventing injury to said insulatingmember Within said bearing-eye.

11. Asingle-linkstrain,comprisingametallic link having at one of itsends a bearingeye and at the other of its ends a head provided with acylindrical eye, an insulating medium enveloping said head and formingan internal lining to said bearing-eye, and means for preventinginjuryto said internal lining for said cylindrical eye.

12. Asingle-linkstrain,comprisingametallic link, having at one of itsends a suspension-eye, and at the other of its ends with a head providedwith a cylindrical eye, an insulating medium enveloping said head andforming an internal lining for said cylindrical eye, and a metallicbushing disposed Within said lining and concentric thereto, said bushingpassing entirely through said cylindrical eye and through saidinsulating medium.

13. A single-link strain,comprisinga single metallic link provided witha bearing-eye, an insulating medium partially filling said eye andpartly enveloping said metallic link, said insulating medium beingsubstantially in the form of a sphere, and a cylindrical bushingdisposed within said eye and passing entirely through said sphere.

14:. Asingle-linkstrain,comprisingasingle metallic link, an insulatingmedium engaging said link, means for suspending said link, and means forpreventing injury to a portion of said insulating medium.

15. Asingle-linkstrain, comprisingasingle link, an insulating mediumengaging the same, mechanism for suspending said link, and a memberengaging a portion of said insulating medium for the purpose ofstrengthening the same.

16. A single-liu k strain, com prisinga single link provided at each endwith mechanism for suspending the same, an insulating medium engagingsaid link, and a metallic member forstrengthening saidinsulating medium.

17. Asingle-link strain,comprisingametallic link, an insulating mediumengaging said link and partially enveloping the same, and a metallicsleeve connected with said insulating medium for the purpose ofstrengthening the same.

18. Asingle-linkstrain,comprisingasingle metallic link, an insulatingmedium engaging said link, and means fol-suspending said link.

19. In a single-link strain, the combination of a single metallic link,and an insulating medium partially enveloping the same.

20. In a single-link strain, the combination of a single metallic linkprovided with two eyes, and an insulating medium engaging said link andenveloping one of said eyes.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

LOUIS STEINBERGER.

Witnesses:

WALTON HARRISON, JNo. M. BITTER.

ICC

